Carlos Beltran isn’t a father yet. He has no children, just his wife and his parents and siblings.

Beltran, though, is aiming to be a dad and begin a family soon. And he’s interested in not only raising his own kids.

He’s also interested in raising other kids who need to be raised.

“We want to have two [kids], but if God blesses us with more, it would be great,” Beltran says. “But at the same time, I do believe in adoption.

“I think there’s a lot of kids in the world [who] don’t have anything, and I do believe I can make a difference in a kid or two and give them better opportunities in life.” Beltran said this during an interview in Phoenix last week, a conversation with The Post that revealed a lot about the personal side of perhaps the Mets’ best player.

The star center fielder goes into today’s Father’s Day series finale with the Orioles enjoying a phenomenal season. He is an MVP candidate and a possible All-Star starter again.

But Beltran is also 29 years old, and a little more than a year from now, he could be a first-time father.

Due to his crazy baseball schedule during the season, Beltran says he and his wife, Jessica, are gearing toward trying to get pregnant this winter.

When Beltran begins his family, he would like to replicate what he had as a kid in Manati, Puerto Rico.

“I think I want to have family like the ones that I grew up with,” he says. “My dad had two boys, two girls. I think that’s great, four kids.” While none of Beltran’s siblings was adopted, he grew up with an older brother (Wilfredo, now 33) and twin sisters (Lic Marie and Marie Lic, 26). That meant Carlos was in the middle.

And got plenty of grief.

“Everything that happens in the house,” Beltran says, “it was my fault.” If the fault was his, the credit for supporting the kids, Beltran explains, goes to his parents. They raised four kids. On $29,000 a year.

Beltran’s father, also Wilfredo, was a pharmaceutical employee who earned that salary, while his mother, Carmen, did not have a paying job (“her work was to take care of us,” Beltran says). The fact that they supported a family of four kids on that salary is staggering.

“My heroes,” is what Beltran calls his parents.

“I don’t know how they did it, but,” he chuckles, “they did it.” Now Beltran, who is in the second year of a sevenyear deal for $119 million, wants to do it. He desires his own kids but calls adopting “an option for us” and points out how “there’s a lot of kids in the world that don’t have anything, and it’s not their fault.” Right now Beltran is an uncle to his brother’s infant child, something he calls “beautiful.” Things could get lovelier soon. If there’s a family addition sometime next year, Beltran’s 2007 could be even more stellar than his 2006 has been. He has family and parenting on his mind, and his Father’s Day is coming.